Electronic switch base



FIG. 1 is a perspective view of an electronic switch base showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The broken lines in the drawings illustrate portions of the electronic switch base that form no part of the claimed design. 

CLAIM The ornamental design for an electronic switch base, as shown and described. 